What's wrong with green urine

Normal urine is pale yellow, clear and transparent. Green urine can be found in biliverdin urine, blue mother urine, or because of the presence of indigo carmine, methyl blue, etc. in urine. Biliverdin is a bile pigment, an intermediate product of heme metabolism. Biliverdin can be reduced to bilirubin, so it is recycled by the body. If biliverdin increases in blood, biliverdin in urine will also increase, showing biliverdin urine, thus making urine green. Blue maternal urine is often autosomal recessive or sex-linked inheritance, is a tryptophan metabolism abnormality, blue maternal urine is characterized by tryptophan absorption disorders, tryptophan in the intestinal tract converted to urine blue mother, re-oxidation to urine blue, make urine blue-green.